US6114648A - Waste demolishing method and apparatus therefor - Google Patents
Waste demolishing method and apparatus therefor Download PDFInfo
- Publication number
- US6114648A US6114648A US09/311,280 US31128099A US6114648A US 6114648 A US6114648 A US 6114648A US 31128099 A US31128099 A US 31128099A US 6114648 A US6114648 A US 6114648A
- Authority
- US
- United States
- Prior art keywords
- sealed enclosure
- plasma
- oil
- compressor
- turntable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 9
- 239000002699 waste material Substances 0.000 title description 2
- 239000012530 fluid Substances 0.000 claims abstract description 18
- 239000011261 inert gas Substances 0.000 claims abstract description 17
- 238000005086 pumping Methods 0.000 claims abstract description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 230000001678 irradiating effect Effects 0.000 claims description 3
- 239000002440 industrial waste Substances 0.000 abstract description 31
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
Definitions
- the present invention relates to a method of and apparatus for demolishing an oil-containing industrial waste object such as, for example, a compressor or an automotive engine.
- the manual dismantling by fusing generates flames and involves the danger of fire or burns.
- oil contained in the industrial waste object may be ignited.
- the ambient atmosphere is degraded by production of smoke, and there are also limits on the processing capacity of the operator.
- the present invention has been developed to overcome the above-described disadvantages.
- the present invention provides a method of demolishing an oil-containing industrial waste object, which comprises the steps of placing an oil-containing industrial waste object within an atmosphere full of an inert gas, and rotating the industrial waste object and irradiating the industrial waste object with a plasma from a plasma arc torch, to thereby cut the industrial waste object horizontally.
- the method referred to above may be cyclically repeated while one of the industrial waste object and the plasma arc torch is moved stepwise relative to the other of the industrial waste object and the plasma arc torch.
- the industrial waste object is cut horizontally or vertically into slices.
- the plasma is selected from the group consisting of a nitrogen plasma and an air plasma.
- the present invention also provides an apparatus for demolishing an oil-containing industrial waste object, which includes a turntable for supporting thereon of an oil-containing industrial waste object, a sealed enclosure mounted above the turntable for gas-tightly enclosing the industrial waste object, a fluid pumping means for sucking a fluid medium out from the sealed enclosure, and a plasma arc torch fitted inside the sealed enclosure for radiating the industrial waste object with a plasma.
- a fluid pumping means for sucking a fluid medium out from the sealed enclosure
- a plasma arc torch fitted inside the sealed enclosure for radiating the industrial waste object with a plasma.
- the oil-containing industrial waste object is cut by the plasma arc torch while placed under the atmosphere rich of the inert gas, there is no possibility that the oil contained in the industrial waste object may be ignited. Therefore, the industrial waste object can be demolished safely.
- the apparatus since the apparatus has a capability of allowing the industrial waste object to be repeatedly cut, the industrial waste object can be cut efficiently and in a short time into a number of slices each having a desired size.
- FIG. 1 illustrates a schematic side sectional view of a demolishing apparatus embodying the present invention.
- the sealed compressor W includes a substantially hermetically sealed housing 2 accommodating therein an electric motor and various compressor component parts together with a quantity of lubricant oil for lubricating the compressor component parts during operation of the compressor.
- the lubricant oil in the sealed compressor W is hazardous in that it can be ignited, with the compressor W itself consequently exploding, when the compressor W is demolished by means of, for example, cutting under an oxygen-rich atmosphere.
- a demolishing apparatus embodying the present invention is generally identified by A.
- This apparatus A includes a support base 4, a turntable 6 rotatably mounted on a center area of the support base 4, and a transparent sealed enclosure 8 made preferably of plastics and mounted sealingly on the support base 4 so as to cover the turntable 6.
- the sealed enclosure 8 may be separable relative to the support base 4 or may have a door although neither is shown.
- the turntable 6 is drivingly coupled with a rotary drive source 14 such as, for example, an electric drive motor through a reduction gear unit including a large-diameter gear 12 rotatable together with the turntable 6 and a small-diameter gear 16 meshed with the large-diameter gear 12 and rigidly connected to a drive shaft of the rotary drive source 14.
- a rotary drive source 14 such as, for example, an electric drive motor through a reduction gear unit including a large-diameter gear 12 rotatable together with the turntable 6 and a small-diameter gear 16 meshed with the large-diameter gear 12 and rigidly connected to a drive shaft of the rotary drive source 14.
- the interior of the sealed enclosure 8 is fluid-connected with a vacuum pump 20 through an electromagnetic valve 18 and accommodates therein a plasma arc torch 22.
- the plasma arc torch 22 is fixedly carried by a lower end of a vertically movable fluid supply tube 24 that extends in a airtight manner out of the sealed enclosure 8 through a dome-shaped top wall 8a of the sealed enclosure 8 and through which a fluid medium such as a nitrogen gas is supplied to the plasma arc torch 22.
- the sealed enclosure 8 includes a generally cylindrical side wall 8b across which an inert gas supply tube 26 extends in a airtight manner so as to supply an inert gas such as a nitrogen gas into the interior of the sealed enclosure 8.
- the demolishing apparatus A also includes a pressure gauge 28 mounted externally on the side wall 8b for detecting the pressure inside the sealed enclosure 8, and a safety relief valve 30 mounted on the top wall 8a for protecting the sealed enclosure 8 in the event of the interior pressure exceeding a predetermined value.
- the rotary drive source 14, the electromagnetic valve 18, the vacuum pump 20, and various electromagnetic valves disposed on the supply tubes 24 and 26 are electrically connected with a controller so that they can be sequentially controlled by the controller on a time sharing basis.
- the demolishing apparatus of the structure described above is operated in the following manner.
- a work to be demolished that is, the compressor W is first loaded into the seated enclosure 8 through an access opening (not shown) which may be defined by the door or by separating the enclosure 8 from the support base 4, so as to be seated on the turntable 6.
- the electromagnetic valve 18 is opened and the vacuum pump 20 is driven to evacuate the interior of the sealed enclosure 8 to a predetermined negative pressure.
- the inert gas is supplied into the sealed enclosure 8 through the inert gas supply tube 26 to such a density that nothing can be ignited or fired within the sealed enclosure 8.
- the rotary drive source 14 is activated to rotate the turntable 6 through the reduction gear unit including the mutually meshed gears 12 and 16 to allow the compressor W to rotate together with the turntable 6.
- the plasma arc torch 22 is then moved to a predetermined height above the support base 4, and the plasma arc torch 22 is subsequently energized electrically while the fluid medium such as the nitrogen gas is supplied thereto through the fluid supply tube 24.
- the plasma arc torch 22 produces a plasma arc with which a portion of the compressor irradiated by the plasma arc starts melting. Accordingly, as the compressor W is turned together with the rotation of the turntable 6, the compressor W can be cut by the plasma arc horizontally at a level spaced a predetermined distance above the support base 4.
- the compressor W can be cut into a plurality of round slices, the number of which corresponds to the number of steps the plasma arc torch 22 is lifted or lowered repeatedly.
- the lubricant oil remaining in the bottom of the compressor W has a viscosity lowered under the influence of heat generated by the plasma arc and can therefore, be recovered easily.
- the reduction gear unit has been described as including the gears 12 and 16, it may include a belt drive system including pulleys of different diameters and an endless belt trained therebetween. Also, instead of the plasma arc torch being movable up and down, the work to be demolished may be moved up and down relative to the plasma arc torch together with the turntable 6.
- an air plasma can be equally employed.
- the work to be demolished may not be always limited to compressor, but may any of oil-containing industrial waste objects including automotive engines.
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Arc Welding In General (AREA)
- Processing Of Solid Wastes (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10277563A JP2000102874A (ja) | 1998-09-30 | 1998-09-30 | 廃棄物の解体方法及びその装置 |
JP10-277563 | 1998-09-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
US6114648A true US6114648A (en) | 2000-09-05 |
Family
ID=17585260
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/311,280 Expired - Lifetime US6114648A (en) | 1998-09-30 | 1999-05-14 | Waste demolishing method and apparatus therefor |
Country Status (5)
Country | Link |
---|---|
US (1) | US6114648A (de) |
EP (1) | EP0990479B1 (de) |
JP (1) | JP2000102874A (de) |
DE (1) | DE69908876T2 (de) |
MY (1) | MY126467A (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6380507B1 (en) * | 2000-04-25 | 2002-04-30 | Wayne F. Childs | Apparatus for feeding waste matter into a plasma arc furnace to produce reusable materials |
US20040127355A1 (en) * | 2002-09-13 | 2004-07-01 | Whirlpool Canada Inc. | Device and process for processing organic waste |
JP2013123661A (ja) * | 2011-12-13 | 2013-06-24 | Hitachi Ltd | コンプレッサ解体装置及び解体方法 |
CN109202238A (zh) * | 2018-11-15 | 2019-01-15 | 上海迅选智能科技有限公司 | 一种废旧压缩机柔性智能切割装置 |
CN109226945A (zh) * | 2018-09-27 | 2019-01-18 | 北京市燃气集团有限责任公司 | 一种等离子弧切割实验系统 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4619138B2 (ja) * | 2005-01-19 | 2011-01-26 | 有限会社エコアドバンス | 廃モータのケーシングの切断装置およびその方法 |
ITPN20120010A1 (it) * | 2012-02-21 | 2013-08-22 | Tellfer S R L | Stazione di caricamento di compressori refrigeranti dismessi e di taglio della loro testa, per lo svuotamento dell'olio contenuto negli stessi e per la successiva estrazione ed il recupero del rame degli avvolgimenti elettrici dei motori elettrici di |
KR101963587B1 (ko) * | 2018-03-13 | 2019-03-29 | (주)오르비텍 | 방사능 오염 폐드럼 절단장치 및 그 절단장치를 이용한 폐드럼 절단방법 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4419943A (en) * | 1980-10-29 | 1983-12-13 | Bent Faurholdt | Incinerator for chemical waste material stored in barrels |
US4835359A (en) * | 1988-02-18 | 1989-05-30 | Commercial Shearing, Inc. | Method of manufacturing hemispherical tank heads |
US4918282A (en) * | 1986-01-10 | 1990-04-17 | Plasma Energy Corporation | Method and apparatus for heating molten steel utilizing a plasma arc torch |
US4940519A (en) * | 1988-06-27 | 1990-07-10 | Dames Robert G | Detoxification apparatus and method for toxic waste using laser energy and electrolysis |
US5138959A (en) * | 1988-09-15 | 1992-08-18 | Prabhakar Kulkarni | Method for treatment of hazardous waste in absence of oxygen |
US5532448A (en) * | 1994-03-09 | 1996-07-02 | Lockheed Environmental Systems & Technologies Co. | System for feeding toxic waste drums into a treatment chamber |
US5762009A (en) * | 1995-06-07 | 1998-06-09 | Alliant Techsystems, Inc. | Plasma energy recycle and conversion (PERC) reactor and process |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5136137A (en) * | 1987-05-04 | 1992-08-04 | Retech, Inc. | Apparatus for high temperature disposal of hazardous waste materials |
GB2279447A (en) * | 1993-06-29 | 1995-01-04 | Ind Tech Res Inst | Plasma waste disposal |
FR2710861B1 (fr) * | 1993-10-08 | 1995-11-03 | Commissariat Energie Atomique | Procédé d'incinération et de vitrification de déchets dans un creuset. |
US5544597A (en) * | 1995-08-29 | 1996-08-13 | Plasma Technology Corporation | Plasma pyrolysis and vitrification of municipal waste |
-
1998
- 1998-09-30 JP JP10277563A patent/JP2000102874A/ja active Pending
-
1999
- 1999-05-12 EP EP99109507A patent/EP0990479B1/de not_active Expired - Lifetime
- 1999-05-12 DE DE69908876T patent/DE69908876T2/de not_active Expired - Lifetime
- 1999-05-14 US US09/311,280 patent/US6114648A/en not_active Expired - Lifetime
- 1999-09-29 MY MYPI99004202A patent/MY126467A/en unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4419943A (en) * | 1980-10-29 | 1983-12-13 | Bent Faurholdt | Incinerator for chemical waste material stored in barrels |
US4918282A (en) * | 1986-01-10 | 1990-04-17 | Plasma Energy Corporation | Method and apparatus for heating molten steel utilizing a plasma arc torch |
US4835359A (en) * | 1988-02-18 | 1989-05-30 | Commercial Shearing, Inc. | Method of manufacturing hemispherical tank heads |
US4940519A (en) * | 1988-06-27 | 1990-07-10 | Dames Robert G | Detoxification apparatus and method for toxic waste using laser energy and electrolysis |
US5138959A (en) * | 1988-09-15 | 1992-08-18 | Prabhakar Kulkarni | Method for treatment of hazardous waste in absence of oxygen |
US5532448A (en) * | 1994-03-09 | 1996-07-02 | Lockheed Environmental Systems & Technologies Co. | System for feeding toxic waste drums into a treatment chamber |
US5762009A (en) * | 1995-06-07 | 1998-06-09 | Alliant Techsystems, Inc. | Plasma energy recycle and conversion (PERC) reactor and process |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6380507B1 (en) * | 2000-04-25 | 2002-04-30 | Wayne F. Childs | Apparatus for feeding waste matter into a plasma arc furnace to produce reusable materials |
US20040127355A1 (en) * | 2002-09-13 | 2004-07-01 | Whirlpool Canada Inc. | Device and process for processing organic waste |
US20080035769A1 (en) * | 2002-09-13 | 2008-02-14 | Whirlpool Corporation | Device and Process for Processing Organic Waste |
US7621472B2 (en) | 2002-09-13 | 2009-11-24 | Whirlpool Corporation | Process for processing organic waste |
US7625195B2 (en) | 2002-09-13 | 2009-12-01 | Whirlpool Corporation | Device and process for processing organic waste |
JP2013123661A (ja) * | 2011-12-13 | 2013-06-24 | Hitachi Ltd | コンプレッサ解体装置及び解体方法 |
CN109226945A (zh) * | 2018-09-27 | 2019-01-18 | 北京市燃气集团有限责任公司 | 一种等离子弧切割实验系统 |
CN109226945B (zh) * | 2018-09-27 | 2023-12-29 | 北京市燃气集团有限责任公司 | 一种等离子弧切割实验系统 |
CN109202238A (zh) * | 2018-11-15 | 2019-01-15 | 上海迅选智能科技有限公司 | 一种废旧压缩机柔性智能切割装置 |
CN109202238B (zh) * | 2018-11-15 | 2021-09-21 | 上海迅选智能科技有限公司 | 一种废旧压缩机柔性智能切割装置 |
Also Published As
Publication number | Publication date |
---|---|
JP2000102874A (ja) | 2000-04-11 |
EP0990479A2 (de) | 2000-04-05 |
EP0990479A3 (de) | 2001-01-31 |
EP0990479B1 (de) | 2003-06-18 |
DE69908876T2 (de) | 2004-05-19 |
DE69908876D1 (de) | 2003-07-24 |
MY126467A (en) | 2006-10-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD., JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TAKANO, HIROSHI;YONEKAWA, TETSUSHI;REEL/FRAME:009989/0870 Effective date: 19990419 |
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STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
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FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
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Year of fee payment: 4 |
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Year of fee payment: 8 |
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Free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
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